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===GCN4 - Leucine Zipper===
===GCN4 - Leucine Zipper===


A specific DNA complex of the 65-residue, N-terminal fragment of the yeast transcriptional activator, GAL4, has been analysed at 2.7 A resolution by X-ray crystallography. The protein binds as a dimer to a symmetrical 17-base-pair sequence. A small, <scene name='Tom_Sandbox/Cd_binding/1'>Zn(2+)-containing domain </scene>recognizes a conserved CCG triplet at each end of the site through direct contacts with the major groove. A short coiled-coil dimerization element imposes 2-fold symmetry. A segment of extended polypeptide chain links the metal-binding module to the dimerization element and specifies the length of the site. The relatively open structure of the complex would allow another protein to bind coordinately with GAL4.  
Blah blah information about leucine zipper GCN4.


{{STRUCTURE_1ysa|  PDB=1ysa  |  SCENE=  }}  
{{STRUCTURE_1ysa|  PDB=1ysa  |  SCENE=  }}  


==About this Structure==
==About this Structure==
[[2zta]] is a 2 chain structure formed by
[[2zta]] is composed of two identical 52 residue alpha helix chains that grouped together to form a dimer. The dimer binds through interlocking leucine amino acids in the C terminal ends, while pinching in on the major groove of DNA in the N terminal end.




==See Also==
==See Also==
*[[Hydrogen in macromolecular models]]
[[2zta]]
[[1ysa]]


==Reference==
==Reference==
<ref group="xtra">PMID:1557122</ref><references group="xtra"/>
[[Category: Saccharomyces cerevisiae]]
[[Category: Carey, M.]]
[[Category: Harrison, S C.]]
[[Category: Marmorstein, R.]]
[[Category: Ptashne, M.]]
[[Category: Double helix]]
[[Category: Protein-dna complex]]
[[Category: Transcription/dna complex]]

Revision as of 03:34, 9 November 2011

File:2zta.png


PDB ID 2zta

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2zta, resolution 1.80Å ()
Non-Standard Residues:


Resources: FirstGlance, OCA, RCSB, PDBsum
Coordinates: save as pdb, mmCIF, xml



GCN4 - Leucine ZipperGCN4 - Leucine Zipper

Blah blah information about leucine zipper GCN4.


PDB ID 1ysa

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1ysa, resolution 2.90Å ()
Resources: FirstGlance, OCA, RCSB, PDBsum
Coordinates: save as pdb, mmCIF, xml



About this StructureAbout this Structure

2zta is composed of two identical 52 residue alpha helix chains that grouped together to form a dimer. The dimer binds through interlocking leucine amino acids in the C terminal ends, while pinching in on the major groove of DNA in the N terminal end.


See AlsoSee Also

2zta 1ysa

ReferenceReference

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Alan Tom